1. When it is slightly dirty, first pour the neutral detergent into warm water at about 30 degrees Celsius;

2. After the emulsion is stirred evenly, put in the clothes and pat them gently with your hands;

3. If the leather lining products are stained with dyes, they should be sent to the dry cleaners for special treatment and washing;

4. Then, wash it with warm water of about 40 degrees Celsius for several times until it is clean;

5. Add a little vinegar or softener to clean water. It is best to put the washed leather collar into a cloth bag and put it in a washing machine for dehydration 1 ~ 2 minutes.

6. Finally, flatten the fur coat collar and iron it with a steam iron at 120℃ ~ 140℃. The iron should not directly touch the leather-lined collar.

7. Leather-lined collars can be flattened and dried after molding.